Follow The Leader AI Robots That Will Freak You Out

"Robots may not invade anytime soon, but there's no denying that they're getting smarter. The ball-shaped ApriAlpha uses advanced voice-recognition technology to distinguish between voices coming from different locations. When Alpha hears a voice, it fixes its steely digital-camera eye on the person speaking. The taller ApriAttenda can identify a person in a crowd by the color of his clothes and shape of his body, and then follow its target. It even bleeps when it loses track of its subject" - Time